Hej

00:41 Jan 10, 2010 

Yes, we may be getting old, but as long as our generation is still here the word "goddag" will be around. I even know people who get offended when you start an e-mail with "hej".

15:11 Jan 9, 2010 

It depends very much on your target group and how formal or informal you want to be. Unless you are specifically targeting a young audience, I would suggest “Goddag.”

Admittedly, I am not a native speaker of Danish, but I have lived half my life in Denmark, and ‘Hej’ strikes even an elderly hippie like me as surprising from someone I don’t know. I might say “Hej med dig!” to a small child.
A good friend (in his 60s) greeted me with “Goddag!” in the supermarket this morning.

I think guests to be interviewed on the radio and TV are usually greeted: “Goddag, og velkommen til.” Newsreaders often begin with “Goddag”.
A great example was Hanne Reintoft, who always began her programme on social rights with a characteristic “Goddag.”
A variant was Lars Larsen, who started the chain of bedding shops, with his dialect version: “Go’ daw, jeg hedder Lars Larsen.” It is true these two retired or moved on several years ago, but the generation who listened to them is still very much around.
When I want to ask for help, e.g. from a shop assistant, I would probably also use “Go’ daw” or “Davis!” – drawing out the vowel. Never “Hej”.

“Goddag” is still definitely around.